My 11-month-old son can be very happy, smiley and has a great laugh, but at the moment he seems to cry at everything and is endlessly frustrated. He isn't moving yet which is probably part of the problem, but he screams when we change his nappy - something he used to enjoy - and he cries loads when he's taken away from something that he had enjoyed playing with. He just seems unsatisfied with anything for longer than a couple of minutes, and when he gets upset he gets really upset. Is this common at this age or do you think there's something I'm doing wrong, or could improve to help his temper?! At this age I don't know if I need to instill some discipline and let him cry, or whether I should be placating him the whole time. Any advice would be great!